Sash slide rail for window casings



p 1963 c. J. TEGGELAAR 3,103,711

SASH SLIDE RAIL FOR WINDOW CASINGS Filed June 1, 1959 I IN V EN TOR.

United States Patent Mich.

Filed June 1, 1959, Ser. No. 817,386 4 Claims. (Cl. 20-12) This invention relates to -a sash slide rail for window casings. The main objects of this invention are:

First, to provide a sash slide rail unit including support members spaced longitudinally of the slide rail and to which the slide rail is connected for convenient installing and to constitute an assembled unit.

Second, to provide a sash rail of the springably supported rail type which may be very economically produced and installed and when installed in pairs for double sash use constitutes an effective Weatherstrip.

Third, to provide a sash rail in which the rail is springably supported to facilitate the engagement of the sash with a Weatherstrip including a counterbalance.

Fourth, to provide a sash rail unit which has relatively few parts and these parts may be economically produced and conveniently assembled.

Objects relating to details and economies of the invention will appear fromdescription to follow. The invention is defined and pointed out in the claims.

A preferred embodiment of the invention is illustrated in the accompanying drawing, in which:

FIG. 1 is a front view of a window casing and upper and lower window sash. The upper sash being illustrated in installed position and the lower sash'in partially installed position.

FIG. 2 is i811 enlarged fragmentary view with certain parts shown in horizontal section on a line corresponding to line 22 of FIG. 1 and with the upper sash in lowered position. The lower sash is indicated in installed position by dotted lines and in an installing position by full lines.

FIG. 3 is an enlarged fragmentary view on a line corresponding to line 3-3 of FIG. 2 of the unit removed from the sash.

FIG. 4 is a rear perspective view of one of the support members.

FIG. 5 is a fragmentary front perspective view of an end portion of the rail.

FIG. 6 is a fragmentary rear view further illustrating the relation of the support members to the rail.

In the accompanying drawing I have illustrated at the right hand of FIG. 2 a counterbalance Weatherstrip combin'ation such as is illustrated in my Patent #2,837,781

issued June 10, 1958. It should be understood however that forms no part of my present invention and is illustrated merely to show a complete assembly. My present Weatherstrip is desirable for use with other forms of weatherstrips with or without sash counterbalancing features.

In the accompanying drawing 1 represents a window frame or casing which includes side rail members 2 and sill 3. The sash '4 is the lower sash and 5 the upper sash of the assembly illustrated. The stiles of the sash have vertical grooves 25 and 6 therein, the groove 25 being adapted to receive the projecting rib-like part 7 of the Weatherstrip designated generally by the numeral 8 in FIG. 2. This Weatherstrip includes the counterbalances designated by the numerals 9 but, as stated, the details thereof form no part of this invention and therefore are not further described. While a slide rail assembly is provided for each sash they are desirably duplicates so only one will be described.

It will be noted that in FIG. 2 one of the suppont members 13 is clamped against the'casing side member 2 and that the illustrated support member for the upper sash 5 is spaced from the casing riser. This represents a possible adjustment which is particularly desirable for installations in which counterbalances are not used. To illustrate, his common practice to provide the upper and lower sash with interlocking members .(not illustrated) and when these sash locking members are released the upper sash sometimes slides downwardly. By adjusting the screws 19 the thrust on the rails may be varied so that as to friotionally hold the sash so it will not slide downwardly of its own weight. This is particularly desirable where counterbalances are not used.

With the screws rotatably connected to the support members the support members can be variably positioned to meet particular installation requirements. Usually where Weatherstrip with counterbalances are present, or other forms of counterbalance are present, the support members are clamped against the side members of the window.

The sliderail assembly .of this invention comprises the slide-rail ltlof inwardly facing channel section. The arms 11 of the rail being provided with inwardly .projecting flanges 12 at their inner edges. The support members designated generally by the numeral 13, commonly at least two, are spaced longitudinally of the rail. The number of the support member may, and commonly do, vary with the length of the rail.

These support members, as illustrated, are formed as sheet metal stampings and are of outwardly facing channel section and comprises the web portion 14 and outwardly projecting outturned flanges 16. The flanges 16 fit within the inwardly projecting arms 11 of the slide rail member 10 and coact with the inwardly projecting flanges 12 of the rail to limit the outward movement of the rail relative to the support member and provide a lateral support for the rail so that while the rail can move inwardly and outwardly relative to the support members when the support member is mounted on 'a casing it is supported against substantial lateral or lateral tilting movement.

In the embodiment illustrated the web 14 of the support member 13 is provided with an outwardly oifset seat portion 18 for the head of'the screw 19 which has an annular groove 30 therein with which the dished collar 31 is engaged, the collar being disposed on the inner side of s aid screw seat portion of the support member so that the screw is rotatably secured to the support member so as to constitute an adjustable support therefore, as illustrated in FIG. 2.

The rib portion 10 of the rail is provided with a hole 20 therein aligned with the screw to permit the insertion of a screw driver for seating the screw. The holes 20 in the rails are surrounded by inwardly projecting flanges which with the arms ofthe rib provide a seat for the outer end of the conical spring 21. The inner end of the spring is seated on the support member which is provided with outwardly projecting tabs or flanges 23 on its end edges and has indentations '24 at the junction of its arms and webs and these coact with the arms of the support member. The flanges or tabs 23 provide a seat for the inner end of the spring supporting it against lateral shifting movement.

Thus arranged the springs not only serve the purpose of yieldingly supporting the rails but serve as coupling members for the rails and the support members, no other coupling means being required except, of course, that the rails have the inwardly projecting flanges 12 on the inner edges of their arms and the support members have the outwardly projecting flanges on the outer edges of their arms so that the rails are not only yieldingly supported but are guidingly supported by the support members. l

The number of the support members is desirably varied according to the length of the rail and, as stated, I have illustrated only one as the support members are duplicates.

In the embodiment illustrated the rail is efiectively connected thereto so that it does not shift longitudinally relative to the support members although the rail is yieldably connected to the support members. It will be readily understood that in assembling it is simply a matter of properly positioning and driving the screws. While in the embodiment illustrated the screws are rotatably connected to the support members in certain embodiments the screws are omitted or are not rotatably attached to the nails or common types of screws be used. The window casing is conventionally illustrated in FIG. 2 but it should be understood that it represents a widely used type and is designed to provide the forwardly facing vertical channel or recess 34 in which a pair of units are commonly disposed in side by side relation, as illustrated in FIG. 2.

in the embodiment illustrated the Weatherstrip 8 is provided for one side of the sash and the pairs of rails constitute weatherstrips for the other side of the sash. To prevent passage of air through the openings or holes 20 in the rails plugs or closures 32 are provided, these being provided with springable fingers 33 which springably engage the inturned edges of the openings, see FIG. 3.

I have illustrated and described the invention in a highly practical commercial embodiment; I have not attempted to illustrate various modifications and adaptations as it is believed this disclosure will enable those skilled in the art to adapt the invention as may be desired. It [is desired to point out that while the rail assembly is illustrated as adapted to vertically slidable sash, it may be 'used without change or modification as the top seal for horizontally slidable sash and for either single or double sash in either relation.

What is claimed as new is:

1. A slide nail assembly for a window sash comprising a sash slide rail of inwardly facing channel section having an outwardly projecting longitudinally extending sash groove engaging rib on the web thereof and having inturned flanges on the inner edges of its arms, said rib portion of said web having longitudinally spaced holes therein surrounded by inturned flanges, support members for said rail spaced longitudinally thereof, said support members being of outwardly facing channel section and having outturned flanges on their arms disposed within the said inturned flanges on said rail arms and coacting therewith to limit the outward movement of said rail relative to said support members, said support members having attaching screws rotatably mounted on the webs thereon and aligned with said openings in said rail to facilitate the attaching of said support members to a window casing, and conical coil springs the larger ends of which are seated in said support members, said support members being provided with flanges on their end edges and embossments at the juncture of their arms with their webs coacting with said end flanges to define seats for said springs, the outer ends of said springs being fittingly seated within the rib of said rail in positioning engagement with said inturned flanges surrounding said openings therein.

2. A slide rail assembly for a Window sash comprising a sash slide rail of inwardly facing channel section having inturned flanges on the inner edges of its arms and having longitudinally spaced holes therein surrounded by inturned flanges, support members for said rail spaced longitudinally thereof, said support members being of outwardly facing channel section and having outturned flanges on their arms disposed within the said inturned flanges on said r-ail arms and coacting therewith to limit the movement of said rail relative to said support memher, said support members having screws rotatably mounted in the webs thereof aligned with said openings in said rail to facilitate the attaching of said support members to a window casing, and coil springs seated in said support members, said support members being provided with spring retaining flanges on their end edges, the outer ends of said springs being seated within said rail in positioning engagement with said inturned flanges surrounding said openings therein.

3. A slide rail assembly for a window sash comprising, a sash slide rail of inwardly facing channel section having inturned flanges on the inner edges of its arms and having longitudinally spaced holes therein, support members for said rail spaced longitudinally thereof in opposed relation to said holes in said rail, said support members being of outwardly facing channel section and having outturned flanges on their arms disposed within the said inturned flanges on said rail arms and coacting therewith to limit the outward movement of said rail relative to said support members, attaching screws for said support members supportingly and rotatably mounted in the webs thereof in aligned relation with said openings in said rail and constituting means for variably positioning the support members relative to a frame on which they are mounted and thereby position the rail relative to such frame member, coil springs seated in said support members with their outer ends in thrust supporting engagement with said rail, and closure members for said openings in said rail having springable elements retainingly engageable with the edges of said openings.

4. A slide rail assembly for a window sash comprising, a sash slide rail of inwardly facing channel section having inturned flanges on the inner edges of its arms and having longitudinally spaced holes therein, support members for said rail spaced longitudinally thereof in opposed relation to said holes in said rail, said support members being of outwardly facing channel section and having outturned flanges on their arms disposed within the said inturned flanges on said rail arms and coacting therewith to limit the outward movement of said rail relative to said support members, attaching screws for said support members supportingly and rotatably mounted in the webs thereof in aligned relation with said openings in said rail and constituting means for variably positioning the support members relative to a frame on which they are mounted and thereby position the rail relative to such frame member, coil springs seated in said support members with their outer ends in thrust supporting engagement with said rail.

References Cited in the file of this patent UNITED STATES PATENTS 2,270,315 Krueger Jan. 20, 1942 2,307,647 Starck Jan. 5, 1943 2,631,336 Weisman Mar. 17, 1953 2,725,603 Curtze Dec. 6, 1955 2,776,458 Schwenak Jan. 8, 1957 

2. A SLIDE RAIL ASSEMBLY FOR A WINDOW SASH COMPRISING A SASH SLIDE RAIL OF INWARDLY FACING CHANNEL SECTION HAVING INTURNED FLANGES ON THE INNER EDGES OF ITS ARMS AND HAVING LONGITUDINALLY SPACED HOLES THEREIN SURROUNDED BY INTURNED FLANGES, SUPPORT MEMBERS FOR SAID RAIL SPACED LONGITUDINALLY THEREOF, SAID SUPPORT MEMBERS BEING OF OUTWARDLY FACING CHANNEL SECTION AND HAVING OUTTURNED FLANGES ON THEIR ARMS DISPOSED WITHIN THE SAID INTURNED FLANGES ON SAID RAIL ARMS AND COACTING THEREWITH TO LIMIT THE MOVEMENT OF SAID RAIL RELATIVE TO SAID SUPPORT MEMBER, SAID SUPPORT MEMBERS HAVING SCREWS ROTATABLY 